<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <title>baoge-1</title>
  </head>
  <body>
    <div id="app">
        <input type="text" v-model="inputValue">
        <button @click="handleBtnClick">提交</button>
        <ul>
            <!-- <li v-for="item in list">{{item}}</li> -->
            <todo-item 
            :content="item" 
            :index="index"
             v-for="(item,index) in list" 
            :key = "item.index"
            @delete="handelItemDelete">
        </todo-item>
        </ul>
    </div>
    <script src="js/vue.js"></script>
    <script>
        Vue.component("TodoItem",{
            props:["content","index"],
            template:"<li @click='handleItemClick'>{{content}}</li>",
            methods:{
                handleItemClick:function () {
                    this.$emit("delete",this.index)
                }
            }
        })
        var vm = new Vue({
            el:"#app",
            data:{
                inputValue:'',
                list:[]
            },
            methods:{
                handleBtnClick:function () {
                    this.list.push(this.inputValue)
                    this.inputValue=""
                },
                handelItemDelete:function (index) {
                    this.list.splice(index,1)
                }  
            }
        })
    </script>
  </body>
</html>
